Adjacent Replacements

给定一个长度为 $n$ 的序列，对这个序列依次进行 $10^9$ 次操作。 对于第 $i$ 次操作： 若 $i$ 为奇数，则将序列中所有值为 $i$ 的数不变； 若 $i$ 为偶数，则将序列中所有值为 $i$ 的数变为 $i-1$。 你需要输出最后的序列。

Mishka got an integer array $ a $ of length $ n $ as a birthday present (what a surprise!). Mishka doesn't like this present and wants to change it somehow. He has invented an algorithm and called it "Mishka's Adjacent Replacements Algorithm". This algorithm can be represented as a sequence of steps: - Replace each occurrence of $ 1 $ in the array $ a $ with $ 2 $ ; - Replace each occurrence of $ 2 $ in the array $ a $ with $ 1 $ ; - Replace each occurrence of $ 3 $ in the array $ a $ with $ 4 $ ; - Replace each occurrence of $ 4 $ in the array $ a $ with $ 3 $ ; - Replace each occurrence of $ 5 $ in the array $ a $ with $ 6 $ ; - Replace each occurrence of $ 6 $ in the array $ a $ with $ 5 $ ; - $ \dots $ - Replace each occurrence of $ 10^9 - 1 $ in the array $ a $ with $ 10^9 $ ; - Replace each occurrence of $ 10^9 $ in the array $ a $ with $ 10^9 - 1 $ . Note that the dots in the middle of this algorithm mean that Mishka applies these replacements for each pair of adjacent integers ( $ 2i - 1, 2i $ ) for each $ i \in\{1, 2, \ldots, 5 \cdot 10^8\} $ as described above. For example, for the array $ a = [1, 2, 4, 5, 10] $ , the following sequence of arrays represents the algorithm: $ [1, 2, 4, 5, 10] $ $ \rightarrow $ (replace all occurrences of $ 1 $ with $ 2 $ ) $ \rightarrow $ $ [2, 2, 4, 5, 10] $ $ \rightarrow $ (replace all occurrences of $ 2 $ with $ 1 $ ) $ \rightarrow $ $ [1, 1, 4, 5, 10] $ $ \rightarrow $ (replace all occurrences of $ 3 $ with $ 4 $ ) $ \rightarrow $ $ [1, 1, 4, 5, 10] $ $ \rightarrow $ (replace all occurrences of $ 4 $ with $ 3 $ ) $ \rightarrow $ $ [1, 1, 3, 5, 10] $ $ \rightarrow $ (replace all occurrences of $ 5 $ with $ 6 $ ) $ \rightarrow $ $ [1, 1, 3, 6, 10] $ $ \rightarrow $ (replace all occurrences of $ 6 $ with $ 5 $ ) $ \rightarrow $ $ [1, 1, 3, 5, 10] $ $ \rightarrow $ $ \dots $ $ \rightarrow $ $ [1, 1, 3, 5, 10] $ $ \rightarrow $ (replace all occurrences of $ 10 $ with $ 9 $ ) $ \rightarrow $ $ [1, 1, 3, 5, 9] $ . The later steps of the algorithm do not change the array. Mishka is very lazy and he doesn't want to apply these changes by himself. But he is very interested in their result. Help him find it.

The first line of the input contains one integer number $ n $ ( $ 1 \le n \le 1000 $ ) — the number of elements in Mishka's birthday present (surprisingly, an array). The second line of the input contains $ n $ integers $ a_1, a_2, \dots, a_n $ ( $ 1 \le a_i \le 10^9 $ ) — the elements of the array.

Print $ n $ integers — $ b_1, b_2, \dots, b_n $ , where $ b_i $ is the final value of the $ i $ -th element of the array after applying "Mishka's Adjacent Replacements Algorithm" to the array $ a $ . Note that you cannot change the order of elements in the array.

5
1 2 4 5 10

1 1 3 5 9

10
10000 10 50605065 1 5 89 5 999999999 60506056 1000000000

9999 9 50605065 1 5 89 5 999999999 60506055 999999999

The first example is described in the problem statement.